package com.roroldo.springcloud.controller;


import com.roroldo.springcloud.entities.CommonResult;
import com.roroldo.springcloud.entities.Payment;
import com.roroldo.springcloud.service.PaymentService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import java.util.List;
import java.util.concurrent.TimeUnit;

@RestController
@Slf4j
public class PaymentController {
    @Resource
    private PaymentService paymentService;

    @Value("${server.port}")
    private String serverPort;

    // post 请求提交的数据是 json 格式的，因此需要配合 @RequestBody 注解
    @PostMapping(value = "/payment/create")
    public CommonResult create(@RequestBody Payment payment) {
        int result = paymentService.create(payment);
        log.info("插入返回结果：{}", result);
        if (result > 0) {
            return new CommonResult(200, "插入成功", result);
        } else {
            return new CommonResult(444,"插入数据库失败", result);
        }
    }

    @GetMapping(value = "/payment/get/{id}")
    public CommonResult<Payment> getPaymentById(@PathVariable("id") Long id) {
        Payment payment = paymentService.getPaymentById(id);
        log.info("查询结果：{}", payment);
        if (payment != null) {
            return new CommonResult(200, "查询成功" + "\t 服务端口：" + serverPort, payment);
        } else {
            return new CommonResult(444,"没有对应ID: " + id + "的记录");
        }
    }

    // 服务发现
    @Resource
    private DiscoveryClient discoveryClient;

    @GetMapping(value = "/payment/discover")
    public Object discover() {
        // 获取 eureka 上注册的服务信息
        List<String> services = discoveryClient.getServices();
        for (String service : services) {
            log.info("service: {}", service);
        }
        List<ServiceInstance> instances = discoveryClient.getInstances("CLOUD-PAYMENT-SERVICE");
        for (ServiceInstance instance : instances) {
            log.info(instance.getServiceId() + "\t" + instance.getHost() + "\t" + instance.getPort() + "\t"
                    + instance.getUri());
        }
        return this.discoveryClient;
    }

    @GetMapping(value = "/payment/lb")
    public String getPaymentLb() {
        return serverPort;
    }

    // 演示 Feign 超时控制
    @GetMapping(value = "/payment/feign/timeout")
    public String paymentFeignTimeout() {
        log.info("=========paymentFeignTimeout from port:{} =========", serverPort);
        try {
            TimeUnit.SECONDS.sleep(3);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return serverPort;
    }

    // 演示 zipkin
    @GetMapping("/payment/zipkin")
    public String paymentZipkin() {
        return "hi ,i'am paymentzipkin server fall back，welcome to shenzhen，O(∩_∩)O哈哈~";
    }
}
